If you play a card and pay its cost in money, and the card says at the bottom, to deduct 2 from your energy production and add x amount to your economy, if you are at 1 energy production, can you play that card? I know you cannot go below 0 production, but is the minus 2 another cost to play that card, or can you just take your production to 0 and play the card? Thanks for your help.